`21-host.com`

DNSSEC	⚠️ Not signed
NS	`dns1.name-services.com` ⭐
		A	2604:4000:2800:2000:64:98:148:137^{🇨🇦 TUCOWS-32604:4000:2800::/37 Tucows.com Co.}
			PTR	`dns1.name-services.com`
		A	64.98.148.137^{🇨🇦 TUCOWS-364.98.144.0/20 Tucows.com Co.}
			PTR	`dns1.name-services.com`
NS	`dns2.name-services.com`
		A	2604:4000:0:d:216:40:47:201^{🇨🇦 TUCOWS2604:4000::/48 -BRA-IPV6-BLK1.1/NET-2604:4000}
			PTR	`dns2.name-services.com`
		A	216.40.47.201^{🇨🇦 TUCOWS216.40.47.0/24 -BRA-BLK1.4/NET-216-40-47-0}
			PTR	`dns2.name-services.com`
NS	`dns3.name-services.com`
		A	2604:4000:2800:2000:64:98:148:138^{🇨🇦 TUCOWS-32604:4000:2800::/37 Tucows.com Co.}
			PTR	`dns3.name-services.com`
		A	64.98.148.138^{🇨🇦 TUCOWS-364.98.144.0/20 Tucows.com Co.}
			PTR	`dns3.name-services.com`
NS	`dns4.name-services.com`
		A	2604:4000:0:d:216:40:47:202^{🇨🇦 TUCOWS2604:4000::/48 -BRA-IPV6-BLK1.1/NET-2604:4000}
			PTR	`dns4.name-services.com`
		A	216.40.47.202^{🇨🇦 TUCOWS216.40.47.0/24 -BRA-BLK1.4/NET-216-40-47-0}
			PTR	`dns4.name-services.com`
NS	`dns5.name-services.com`
		A	2604:4000:2800:2000:64:98:148:139^{🇨🇦 TUCOWS-32604:4000:2800::/37 Tucows.com Co.}
			PTR	`dns5.name-services.com`
		A	64.98.148.139^{🇨🇦 TUCOWS-364.98.144.0/20 Tucows.com Co.}
			PTR	`dns5.name-services.com`
SOA	`dns1.name-services.com`info@name-services.com serial=1770896864

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1771291435

📈 Tranco rank: #403,018

Subdomains

ns7.21-host.com

ns.21-host.com

ns6.21-host.com

ns8.21-host.com

Same first word

21-host.com

DNS History

8 records (5 active, 3 former)

●NSdns1.name-services.com2015-07-20 → 2026-03-14 · 2 obs

● 2015-07-20 04:34:30
● 2026-03-14 10:39:36

●NSdns2.name-services.com2015-07-20 → 2026-03-14 · 2 obs

● 2015-07-20 04:34:30
● 2026-03-14 10:39:36

●NSdns3.name-services.com2015-07-20 → 2026-03-14 · 2 obs

● 2015-07-20 04:34:30
● 2026-03-14 10:39:36

●NSdns4.name-services.com2015-07-20 → 2026-03-14 · 2 obs

● 2015-07-20 04:34:30
● 2026-03-14 10:39:36

●NSdns5.name-services.com2015-07-20 → 2026-03-14 · 2 obs

● 2015-07-20 04:34:30
● 2026-03-14 10:39:36

○MXmail.21-host.com2015-07-20 → 2026-02-15 · 4 obs

● 2015-07-20 04:34:30
● 2026-02-15 22:45:34
○ 2026-02-24 07:18:42
○ 2026-03-14 10:39:36

○MXvoip1.21-host.com2015-07-20 → 2026-02-15 · 4 obs

● 2015-07-20 04:34:30
● 2026-02-15 22:45:34
○ 2026-02-24 07:18:42
○ 2026-03-14 10:39:36

○A210.198.13.1652015-07-20 → 2026-02-15 · 4 obs

● 2015-07-20 04:34:30
● 2026-02-15 22:45:34
○ 2026-02-24 07:18:42
○ 2026-03-14 10:39:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, i.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net...	-
21-host.com	dns1.name-services.com, dns2.name-services.com, dns3.name-services.com, dns4.name-services.com...	10 records

✅ Authoritative Response

Server: 64.98.148.137

NS records: dns1.name-services.com, dns2.name-services.com, dns3.name-services.com, dns4.name-services.com, dns5.name-services.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21-host.com (unsigned zone)

⏱️ Timing

Total: 274ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	5	`dns2.name-services.com, dns4.name-services.com...`
SOA	1	`dns1.name-services.com info.name-service`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (dns1.name-services.com, dns1.name-services.com, dns2.name-services.com...)

Analysis

Hierarchy

21-host.com is a parent of ns7.21-host.com, ns.21-host.com, ns6.21-host.com and ns8.21-host.com.

Name Servers

21-host.com is delegated to five name servers: dns1.name-services.com, dns2.name-services.com, dns3.name-services.com, dns4.name-services.com and dns5.name-services.com.

21-host.com at least partially shares name servers with other domains, for instance enerlink.org, tamieca.com, happydeath.org, johata.com and ransomr.net.